24 ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUTTA. 
straw-coloured, papery, striate, transversely veined, ciliate on the edges, somewhat rounded 
and gradually narrowed to a truncate apex of 2 to '3 in, which has on either side 
a narrow falcate auricle with a few long stiff hairy bristles; imperfect bade narrow, 
subulate, recurved, 1 to 3 in. long by 2 in. broad; ligule short, truncate, pubescent. 
Leaves thin, lanceolate acuminate, 4 to 6 in. long by ‘6 to ‘7 in. broad, unequally 
cuneate at the base into a short petiole, smooth above, slightly rough beneath, 
scabrous-serrate on the edges; main veins hardly prominent, secondary veins 4 to 5 
pairs, intermediate 7 to 8, transverse vein'ets numerous, prominent, straight, oblique 
(about 100 per in.) with often pellucid dots between them ; /eaf-sheafAs smooth, striate, 
keeled, ending in faleate auricles with few (usually 5-6) stiff bristles; Пуше short, truncate, 
pubescent. Inflorescence, etc., unknown. 
Hills of Jaunsar in North-West Himalaya, near Mundali, at 7,000 to 8,000 ft., 1892. 
This handsome species is at once distinguished by its single culms arising from a 
long creeping jointed rhizome, often 3 feet long between the stolons; by its auricled 
sheath, green culms and leaves thinner than those of its nearest neighbour A. spathiflora. 
It is used for basket-work, and is apparently confined to the ono locality. 
PrarE No. 22.—Arundinaria jaunsarensis, Gamble. 1, leaf-branch; 2, culm with 
sheaths ; 3, culm-sheath—natural size ; 4, rhizome—much reduced ; 5, transverse venation 
of leaf; 6, leaf-sheaths—exlarged (from fresh specimens). 
23. ARUNDINARIA RorLoawa, п. sp. Gamble. 
A shrubby bamboo with stoloniferous distant culms, the rhizomes at first covered 
with shining, acute, imbricating scales, afterwards jointed, the joints about "5 in. long. 
Culms about 8 ft. high, 4 in. in diameter, slightly rough, green at first, afterwards 
yellow, somewhat flattened on one side; nodes somewhat swollen, lower ones rooting; 
internodes 8 to 12 in. long, walls rather thin, less than *1 in. Culm-sheaths 4 to 6 in. long, 
l to 2 in. broad, at first covered with scattered appressed bristles, afterwards glabrous, 
shining, ciliate on the edges, narrowed convexly in the upper third into a rather broad 
truneate mouth, which is furnished with long, recurved, rounded, faleate auricles with 
long bristles ; imperfect blade 15 to 2 in. long, narrow, subulate, recurved ; ligule narrow. 
Leaves 6 to 8 in. long by 1 to 15 in. broad, oblong-lanceolate ; rounded at the 
base into a short, very broad, flat petiole; ending above in a rather short acute poiut; 
smooth above, sparsely hairy beneath ; the edges cartilaginous, spinulose-scabrous ; main 
veins hardly seen above, shining beneath, secondary veins 8 to 10 pairs, intermediate | 
about 7, transverse veinlets very prominent beneath, numerous, straight and regular ; 
leaf-sheaths striate, sparsely strigose, hairy, ending in a narrow line and a rounded, long- 
ciliate auricle ; ligule long, membranous, deeply cleft. Inflorescence, etc., not known. 
Naga Hills: found by James Rollo in the Zullah Valley at 5,000 to 7,000 ft. 
in 1889, and by Sri Gopal Banerjee the samo year, and sent by С. Mann. 
This is a remarkable species on account of the breadth of its leaves. In its 
rhizome and distant culms and in the character of the culm-sheaths it 
A. jaunsarensis, It is known by the Naga name of роб. | 
Prare No. 23.—Arundinaria Rolloana, Gamble. 1, leaf-branch; 2, rhizome and eulm— 
of natural size; 3, culm-sheath—reduced; 4, leaf-sheath—much enlarged (all from 
J. Rollo’s specimens). : Дама, : UO d uo A MEC 
resembles 
